AIRLESS VS AIRSPRAY GUNS IN INDUSTRIAL PAINTING
DIFFERENCES BETWEEN AIRLESS AND AIRSPRAY
Airless uses pressure to atomize the paint using hydraulic force as it exits the spray tip (up to 7250 psi)
Air spray uses low pressure paint with air pressure applied at the spray gun to break up the paint into atomized droplets (at 100 psi)
HOW TO CHOOSE BETWEEN AN AIRLESS AND AIRSPRAY
1. First, let’s consider the type of job you’d be using it for…
If you have a larger open area to paint, Airless will get the job done faster because the pumps supply a large amount of paint (typically up to 2 gallons/min)
If you have smaller, intricate areas to paint, and airspray is going to be a better option (0.2 gallons/min). Overspray, waste of paint if using airless.
You can adjust the flow of paint and size of the fan from the spray gun as needed.
2. The other point to consider is the type of coating and finish you are looking for.
If you are looking for a finer finish or a full gloss top coat (automotive quality) – you should be using air spray because the atomization creates finer droplets
Finer droplets leaves a cleaner/smoother finish
Highbuild (100% solids) coatings should be applied with airless. Because of the pressure required to atomize them
|Size of Area/Type||Large||Small|
|Type of coating||Heavy build||Thin|
|Type of Finish required||General Industrial||Automotive/High Gloss|
* Air Assisted Airless/ElectroStatic techniques
(can be applied to any of these applications, but only in a contained spray booth or wind protected location)
Some applications need to use both technologies, and here’s a case where BlastOne was able to help a customer save time and money.
A Customer was Painting railway cars for carrying coal. There was a lot painting, a lot of area to cover, and we started off the job spraying with 2 airless pumps but we were having difficulty trying to paint all the detailed work, hatches and the discharge mechanisms on the underside with an airless. Working with the customer onsite, running behind schedule and over budget, had to turn the job around.
We switched out one painter to use a Warrior Airspray pump with an Airspray gun to do the detail work while the other remained with the airless pump for the mass surface area
Improved speed by 25% and saved wasted paint and overspray. Saved time and money!